podfilecommitlock

#!/usr/bin/env node
var fs = require('fs');
var path = require('path');

var arguments = process.argv.splice(2);

var pathToProject = arguments[0] ? path.normalize(arguments[0]) : path.normalize('./');

var pathPodfile = path.join(pathToProject, 'Podfile');
var pathPodfileLock = path.join(pathToProject, 'Podfile.lock');

// 最终解析的结果
var dependenciesMap = {};

// 1. 读取lock文件
var contentOfPodfileLock = fs.readFileSync(pathPodfileLock, {'encoding':'utf8'});
var lines = contentOfPodfileLock.split('\n');

// 2. 解析 DEPENDENCIES
// 找到 DEPENDENCIES 这行 从下一行开始到空行之间的内容
function depParse(lines) {
	var result = {useVersion:{},useGit:{}};
	var listDep = [];
	var flagDep = false;
	for (var i = 0; i < lines.length; i++) {
		var line = lines[i];
		// console.log('line:' + line.length + ':' + line);
		if (flagDep && line.length == 0) break;
		if (flagDep) listDep.push(line);

		if (line == 'DEPENDENCIES:') {
			flagDep = true;
		}
	}

	// console.log('===== DEPENDENCIES - start =====');
	// console.log(listDep);
	// console.log('===== DEPENDENCIES - end =====');

	// - ALISCBus (from `git@gitlab.alibaba-inc.com:ALISCCommonSDK/ALISCBus.git`, branch `master`)
	var regGit = /- (.+) \(from `(.+)`, commit `.*`, branch `(.+)`\)|- (.+) \(from `(.+)`, branch `(.+)`\)|- (.+) \(from `(.+)`\)/
	// - arm-aliseller (~> 0.0.1)
	var regVer = /.*- (.+) \((.+)\)/

	// 区分git/version
	for (var i = 0; i < listDep.length; i++) {
		var line = listDep[i];
		if (line.indexOf('(from ') != -1) {
			// git
			var matches = line.match(regGit);

			for (var j = matches.length - 1; j > 0; j--) {
				if (!matches[j] || matches[j].length == 0) matches.splice(j, 1);
			}
			var obj = {
				pod: matches[1],
				git: matches[2],
				branch: matches[3] || 'master',
			};

			result.useGit[matches[1]] = obj;
		} else {
			// version
			var matches = line.match(regVer);
			var obj = {
				pod: matches[1],
				version: matches[2]
			};

			result.useVersion[matches[1]] = obj;
		}
	}

	return result;
}

var maps = depParse(lines);

// console.log(maps);

// 3. 解析 CHECKOUT OPTIONS

function checkOutParse(lines) {
	var result = {};
	var flag = false;
	var aboutLines = [];
	for (var i = 0; i < lines.length; i++) {
		var line = lines[i];
		if (flag && line.length == 0) break;
		if (flag) aboutLines.push(line);

		if (line == 'CHECKOUT OPTIONS:') flag = true;
	}

	var regPod = /^\s*(.+):$/;
	var regCommit = /^\s*:commit:\s*(.+)$/;

	var obj = {
		pod: null,
		commit: null
	};
	for (var i = 0; i< aboutLines.length; i++) {
		var line = aboutLines[i];
		// console.log(i, line);
		if (regPod.test(line)) {
			// 第一个pod名字不需要添加 初始pod没名字
			if (obj.pod) result[obj.pod] = obj;

			// 添加后置空
			obj = {
				pod: line.match(regPod)[1],
				commit: null
			}

		} else if (regCommit.test(line)) {

			// 添加
			obj.commit = line.match(regCommit)[1];
		}

		// 或者遍历到了最后一行，肯定最后一个Pod已经组装完成了，所以也添加
		if (i == aboutLines.length - 1) result[obj.pod] = obj;
	}

	return result;
}
var checkOut = checkOutParse(lines);
console.log(checkOut);

// 4. 将 DEPENDENCIES 从git获取代码的带上标记
//    整理出依赖带有commit编号或具体版本的map

var pods = Object.keys(checkOut);
// console.log(pods);

for (var i = 0; i < pods.length; i++) {
	var pod = pods[i];
	var commit = checkOut[pod].commit;
	maps.useGit[pod].commit = commit;
}

console.log(' === 整理后结果 === ');
console.log(maps);

// 整理出podfile格式
function generatePodfileContent(maps) {
	var result = '';
	var keysInVersion = Object.keys(maps.useVersion);
	for (var i = 0; i < keysInVersion.length; i++) {
		var pod = keysInVersion[i];
		var obj = maps.useVersion[pod];
		result += 'pod "' + pod + '", "' + obj.version + '"\n';
	};

	var keysInGit = Object.keys(maps.useGit);
	for (var i = 0; i < keysInGit.length; i++) {
		var pod = keysInGit[i];
		var obj = maps.useGit[pod];
		result += 'pod "' + pod + '", :git => "' + obj.git + '", :branch => "' + obj.branch + '", :commit => "' + obj.commit + '"\n';
	};
	

	return '\n' + result;
}
var podfileContent = generatePodfileContent(maps);
console.log(' === podfile 替换结果生成 === ');
console.log(podfileContent);

// 5. 读取podifle
var contentOfPodfile = fs.readFileSync(pathPodfile, {encoding:'utf8'});
var queryStart = '### DEPENDENCIES AREA - START';
var queryEnd = '### DEPENDENCIES AREA - END';
var indexForStart = contentOfPodfile.indexOf(queryStart) + queryStart.length;
var indexForEnd = contentOfPodfile.indexOf(queryEnd);
console.log('start', indexForStart, 'end', indexForEnd);

// 6. 删除所有pod依赖
var needReplace = contentOfPodfile.substring(indexForStart, indexForEnd);
// console.log('replace', needReplace);

var targetContent = contentOfPodfile.replace(needReplace, podfileContent);
console.log('targeContent', targetContent);

// 7. 将整理好的依赖填充进去 保存
fs.writeFile(pathPodfile, targetContent, function(err) {
	if (err) {
		return console.log(err);
	}

	console.log('改写文件成功');
});